New York, May 16 -- Many countries need to invest more and take greater action to reduce the number of babies born with low birth weights which put their health at risk, urges a United Nations-backed report released on Wednesday.

Around one-in-seven babies worldwide weighed less than 5.5 pounds, or 2.5 kilogrammes at birth, according to latest data from 2015. The Lancet Global Health research paper was developed by experts from the World Health Organization (WHO), UN Childrens Fund (UNICEF) and the London School of Hygiene and Tropical Medicine, which not only reveals that more than 20 million babies that year were born with a low birthweight, but that 80 per cent of the worlds 2.5 million low weight newborns die every year, because they a...